[b87a5ed] | 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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| 7 | // ExpressionNode.cc -- |
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| 8 | // |
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| 9 | // Author : Rodolfo G. Esteves |
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| 10 | // Created On : Sat May 16 13:17:07 2015 |
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[097e2b0] | 11 | // Last Modified By : Peter A. Buhr |
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[984dce6] | 12 | // Last Modified On : Sun Mar 13 12:34:38 2016 |
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| 13 | // Update Count : 272 |
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[b87a5ed] | 14 | // |
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| 15 | |
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[51b7345] | 16 | #include <cassert> |
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| 17 | #include <cctype> |
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| 18 | #include <algorithm> |
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[59db689] | 19 | #include <sstream> |
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| 20 | #include <cstdio> |
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| 21 | #include <climits> |
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[51b7345] | 22 | |
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| 23 | #include "ParseNode.h" |
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| 24 | #include "SynTree/Constant.h" |
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| 25 | #include "SynTree/Expression.h" |
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[d3b7937] | 26 | #include "Common/UnimplementedError.h" |
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[51b7345] | 27 | #include "parseutility.h" |
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[d3b7937] | 28 | #include "Common/utility.h" |
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[51b7345] | 29 | |
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| 30 | using namespace std; |
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| 31 | |
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[3848e0e] | 32 | ExpressionNode::ExpressionNode() : ParseNode(), argName( 0 ) {} |
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[51b7345] | 33 | |
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[e869d663] | 34 | ExpressionNode::ExpressionNode( const string *name ) : ParseNode( name ), argName( 0 ) {} |
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[51b7345] | 35 | |
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[3848e0e] | 36 | ExpressionNode::ExpressionNode( const ExpressionNode &other ) : ParseNode( other.name ) { |
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[b87a5ed] | 37 | if ( other.argName ) { |
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| 38 | argName = other.argName->clone(); |
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| 39 | } else { |
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| 40 | argName = 0; |
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| 41 | } // if |
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[51b7345] | 42 | } |
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| 43 | |
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[7f5566b] | 44 | ExpressionNode * ExpressionNode::set_argName( const std::string *aName ) { |
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[b87a5ed] | 45 | argName = new VarRefNode( aName ); |
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| 46 | return this; |
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[51b7345] | 47 | } |
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| 48 | |
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[7f5566b] | 49 | ExpressionNode * ExpressionNode::set_argName( ExpressionNode *aDesignator ) { |
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[b87a5ed] | 50 | argName = aDesignator; |
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| 51 | return this; |
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[51b7345] | 52 | } |
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| 53 | |
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| 54 | void ExpressionNode::printDesignation( std::ostream &os, int indent ) const { |
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[b87a5ed] | 55 | if ( argName ) { |
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[59db689] | 56 | os << string( indent, ' ' ) << "(designated by: "; |
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[b87a5ed] | 57 | argName->printOneLine( os, indent ); |
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| 58 | os << ")" << std::endl; |
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| 59 | } // if |
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[51b7345] | 60 | } |
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| 61 | |
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[cd623a4] | 62 | //############################################################################## |
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| 63 | |
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[3848e0e] | 64 | NullExprNode::NullExprNode() {} |
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[51b7345] | 65 | |
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[3848e0e] | 66 | NullExprNode *NullExprNode::clone() const { |
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[b87a5ed] | 67 | return new NullExprNode(); |
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[51b7345] | 68 | } |
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| 69 | |
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[bdd516a] | 70 | void NullExprNode::print( std::ostream & os, int indent ) const { |
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[b87a5ed] | 71 | printDesignation( os ); |
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| 72 | os << "null expression"; |
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[51b7345] | 73 | } |
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| 74 | |
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[bdd516a] | 75 | void NullExprNode::printOneLine( std::ostream & os, int indent ) const { |
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[b87a5ed] | 76 | printDesignation( os ); |
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| 77 | os << "null"; |
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[51b7345] | 78 | } |
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| 79 | |
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[3848e0e] | 80 | Expression *NullExprNode::build() const { |
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[b87a5ed] | 81 | return 0; |
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[51b7345] | 82 | } |
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| 83 | |
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[a08ba92] | 84 | CommaExprNode *ExpressionNode::add_to_list( ExpressionNode *exp ) { |
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[b87a5ed] | 85 | return new CommaExprNode( this, exp ); |
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[51b7345] | 86 | } |
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| 87 | |
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[cd623a4] | 88 | //############################################################################## |
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| 89 | |
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| 90 | static inline bool checkU( char c ) { return c == 'u' || c == 'U'; } |
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| 91 | static inline bool checkL( char c ) { return c == 'l' || c == 'L'; } |
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| 92 | static inline bool checkF( char c ) { return c == 'f' || c == 'F'; } |
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[5721a6d] | 93 | static inline bool checkD( char c ) { return c == 'd' || c == 'D'; } |
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| 94 | static inline bool checkI( char c ) { return c == 'i' || c == 'I'; } |
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[cd623a4] | 95 | static inline bool checkX( char c ) { return c == 'x' || c == 'X'; } |
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| 96 | |
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[5f2f2d7] | 97 | // Difficult to separate extra parts of constants during lexing because actions are not allow in the middle of patterns: |
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[cd623a4] | 98 | // |
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| 99 | // prefix action constant action suffix |
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| 100 | // |
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| 101 | // Alternatively, breaking a pattern using BEGIN does not work if the following pattern can be empty: |
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| 102 | // |
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| 103 | // constant BEGIN CONT ... |
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| 104 | // <CONT>(...)? BEGIN 0 ... // possible empty suffix |
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| 105 | // |
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| 106 | // because the CONT rule is NOT triggered if the pattern is empty. Hence, constants are reparsed here to determine their |
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| 107 | // type. |
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[51b7345] | 108 | |
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[59db689] | 109 | ConstantNode::ConstantNode( Type t, string *inVal ) : type( t ), value( *inVal ) { |
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[cd623a4] | 110 | // lexing divides constants into 4 kinds |
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[a08ba92] | 111 | switch ( type ) { |
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[59db689] | 112 | case Integer: |
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[b87a5ed] | 113 | { |
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[59db689] | 114 | static const BasicType::Kind kind[2][3] = { |
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| 115 | { BasicType::SignedInt, BasicType::LongSignedInt, BasicType::LongLongSignedInt }, |
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| 116 | { BasicType::UnsignedInt, BasicType::LongUnsignedInt, BasicType::LongLongUnsignedInt }, |
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| 117 | }; |
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| 118 | bool dec = true, Unsigned = false; // decimal, unsigned constant |
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| 119 | int size; // 0 => int, 1 => long, 2 => long long |
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[5721a6d] | 120 | unsigned long long v; // converted integral value |
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| 121 | size_t last = value.length() - 1; // last character of constant |
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[59db689] | 122 | |
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[cd623a4] | 123 | if ( value[0] == '0' ) { // octal constant ? |
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[59db689] | 124 | dec = false; |
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[cd623a4] | 125 | if ( last != 0 && checkX( value[1] ) ) { // hex constant ? |
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[59db689] | 126 | sscanf( (char *)value.c_str(), "%llx", &v ); |
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| 127 | //printf( "%llx %llu\n", v, v ); |
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| 128 | } else { |
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| 129 | sscanf( (char *)value.c_str(), "%llo", &v ); |
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| 130 | //printf( "%llo %llu\n", v, v ); |
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| 131 | } // if |
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[cd623a4] | 132 | } else { // decimal constant ? |
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[5f2f2d7] | 133 | sscanf( (char *)value.c_str(), "%llu", &v ); |
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[59db689] | 134 | //printf( "%llu %llu\n", v, v ); |
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| 135 | } // if |
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| 136 | |
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| 137 | if ( v <= INT_MAX ) { // signed int |
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| 138 | size = 0; |
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[5f2f2d7] | 139 | } else if ( v <= UINT_MAX && ! dec ) { // unsigned int |
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[59db689] | 140 | size = 0; |
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[5f2f2d7] | 141 | Unsigned = true; // unsigned |
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[59db689] | 142 | } else if ( v <= LONG_MAX ) { // signed long int |
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| 143 | size = 1; |
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[5f2f2d7] | 144 | } else if ( v <= ULONG_MAX && ( ! dec || LONG_MAX == LLONG_MAX ) ) { // signed long int |
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[59db689] | 145 | size = 1; |
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[5f2f2d7] | 146 | Unsigned = true; // unsigned long int |
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[59db689] | 147 | } else if ( v <= LLONG_MAX ) { // signed long long int |
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| 148 | size = 2; |
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[5f2f2d7] | 149 | } else { // unsigned long long int |
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[59db689] | 150 | size = 2; |
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[5f2f2d7] | 151 | Unsigned = true; // unsigned long long int |
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[59db689] | 152 | } // if |
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[51b7345] | 153 | |
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[cd623a4] | 154 | if ( checkU( value[last] ) ) { // suffix 'u' ? |
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[59db689] | 155 | Unsigned = true; |
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[5f2f2d7] | 156 | if ( last > 0 && checkL( value[ last - 1 ] ) ) { // suffix 'l' ? |
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[59db689] | 157 | size = 1; |
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[5f2f2d7] | 158 | if ( last > 1 && checkL( value[ last - 2 ] ) ) { // suffix 'll' ? |
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[59db689] | 159 | size = 2; |
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| 160 | } // if |
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| 161 | } // if |
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[cd623a4] | 162 | } else if ( checkL( value[ last ] ) ) { // suffix 'l' ? |
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[59db689] | 163 | size = 1; |
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[5f2f2d7] | 164 | if ( last > 0 && checkL( value[ last - 1 ] ) ) { // suffix 'll' ? |
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[59db689] | 165 | size = 2; |
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[5f2f2d7] | 166 | if ( last > 1 && checkU( value[ last - 2 ] ) ) { // suffix 'u' ? |
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| 167 | Unsigned = true; |
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| 168 | } // if |
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| 169 | } else { |
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| 170 | if ( last > 0 && checkU( value[ last - 1 ] ) ) { // suffix 'u' ? |
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| 171 | Unsigned = true; |
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| 172 | } // if |
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[59db689] | 173 | } // if |
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| 174 | } // if |
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[cd623a4] | 175 | btype = kind[Unsigned][size]; // lookup constant type |
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| 176 | break; |
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| 177 | } |
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| 178 | case Float: |
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| 179 | { |
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[5721a6d] | 180 | static const BasicType::Kind kind[2][3] = { |
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| 181 | { BasicType::Float, BasicType::Double, BasicType::LongDouble }, |
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| 182 | { BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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| 183 | }; |
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| 184 | bool complx = false; // real, complex |
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| 185 | int size = 1; // 0 => float, 1 => double (default), 2 => long double |
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| 186 | // floating-point constant has minimum of 2 characters: 1. or .1 |
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| 187 | size_t last = value.length() - 1; |
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| 188 | |
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| 189 | if ( checkI( value[last] ) ) { // imaginary ? |
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| 190 | complx = true; |
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| 191 | last -= 1; // backup one character |
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[cd623a4] | 192 | } // if |
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[5721a6d] | 193 | if ( checkF( value[last] ) ) { // float ? |
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| 194 | size = 0; |
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| 195 | } else if ( checkD( value[last] ) ) { // double ? |
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| 196 | size = 1; |
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| 197 | } else if ( checkL( value[last] ) ) { // long double ? |
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| 198 | size = 2; |
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[cd623a4] | 199 | } // if |
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[5721a6d] | 200 | if ( ! complx && checkI( value[last - 1] ) ) { // imaginary ? |
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| 201 | complx = true; |
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| 202 | } // if |
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| 203 | btype = kind[complx][size]; // lookup constant type |
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[b87a5ed] | 204 | break; |
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| 205 | } |
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[59db689] | 206 | case Character: |
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| 207 | btype = BasicType::Char; // default |
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| 208 | if ( string( "LUu" ).find( value[0] ) != string::npos ) { |
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| 209 | // ??? |
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| 210 | } // if |
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| 211 | break; |
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| 212 | case String: |
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| 213 | // array of char |
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| 214 | if ( string( "LUu" ).find( value[0] ) != string::npos ) { |
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| 215 | if ( value[0] == 'u' && value[1] == '8' ) { |
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| 216 | // ??? |
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| 217 | } else { |
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| 218 | // ??? |
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| 219 | } // if |
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| 220 | } // if |
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| 221 | break; |
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| 222 | } // switch |
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| 223 | } // ConstantNode::ConstantNode |
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[51b7345] | 224 | |
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[59db689] | 225 | ConstantNode *ConstantNode::appendstr( const std::string *newValue ) { |
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| 226 | assert( newValue != 0 ); |
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| 227 | assert( type == String ); |
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[51b7345] | 228 | |
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[7f5566b] | 229 | // "abc" "def" "ghi" => "abcdefghi", remove new text from quotes and insert before last quote in old string. |
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[59db689] | 230 | value.insert( value.length() - 1, newValue->substr( 1, newValue->length() - 2 ) ); |
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| 231 | |
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[cd623a4] | 232 | delete newValue; // allocated by lexer |
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[b87a5ed] | 233 | return this; |
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[51b7345] | 234 | } |
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| 235 | |
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[bdd516a] | 236 | void ConstantNode::printOneLine( std::ostream &os, int indent ) const { |
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[59db689] | 237 | os << string( indent, ' ' ); |
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[b87a5ed] | 238 | printDesignation( os ); |
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| 239 | |
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| 240 | switch ( type ) { |
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| 241 | case Integer: |
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| 242 | case Float: |
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| 243 | os << value ; |
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| 244 | break; |
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| 245 | case Character: |
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| 246 | os << "'" << value << "'"; |
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| 247 | break; |
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| 248 | case String: |
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| 249 | os << '"' << value << '"'; |
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| 250 | break; |
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[c7ed6d0] | 251 | } // switch |
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[51b7345] | 252 | |
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[b87a5ed] | 253 | os << ' '; |
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[51b7345] | 254 | } |
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| 255 | |
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[bdd516a] | 256 | void ConstantNode::print( std::ostream &os, int indent ) const { |
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[b87a5ed] | 257 | printOneLine( os, indent ); |
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| 258 | os << endl; |
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[51b7345] | 259 | } |
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| 260 | |
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| 261 | Expression *ConstantNode::build() const { |
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[cd623a4] | 262 | ::Type::Qualifiers q; // no qualifiers on constants |
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[b87a5ed] | 263 | |
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[59db689] | 264 | switch ( get_type() ) { |
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[b87a5ed] | 265 | case String: |
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[59db689] | 266 | { |
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| 267 | // string should probably be a primitive type |
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| 268 | ArrayType *at = new ArrayType( q, new BasicType( q, BasicType::Char ), |
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| 269 | new ConstantExpr( |
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| 270 | Constant( new BasicType( q, BasicType::UnsignedInt ), |
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[ea9b9d3] | 271 | toString( value.size()+1-2 ) ) ), // +1 for '\0' and -2 for '"' |
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[59db689] | 272 | false, false ); |
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| 273 | return new ConstantExpr( Constant( at, value ), maybeBuild< Expression >( get_argName() ) ); |
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| 274 | } |
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| 275 | default: |
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[cd623a4] | 276 | return new ConstantExpr( Constant( new BasicType( q, btype ), get_value() ), maybeBuild< Expression >( get_argName() ) ); |
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[b87a5ed] | 277 | } |
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[51b7345] | 278 | } |
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| 279 | |
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[cd623a4] | 280 | //############################################################################## |
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| 281 | |
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[bdd516a] | 282 | VarRefNode::VarRefNode() : isLabel( false ) {} |
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[51b7345] | 283 | |
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[59db689] | 284 | VarRefNode::VarRefNode( const string *name_, bool labelp ) : ExpressionNode( name_ ), isLabel( labelp ) {} |
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[51b7345] | 285 | |
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[3848e0e] | 286 | VarRefNode::VarRefNode( const VarRefNode &other ) : ExpressionNode( other ), isLabel( other.isLabel ) { |
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[51b7345] | 287 | } |
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| 288 | |
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| 289 | Expression *VarRefNode::build() const { |
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[b87a5ed] | 290 | return new NameExpr( get_name(), maybeBuild< Expression >( get_argName() ) ); |
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[51b7345] | 291 | } |
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| 292 | |
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[bdd516a] | 293 | void VarRefNode::printOneLine( std::ostream &os, int indent ) const { |
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[b87a5ed] | 294 | printDesignation( os ); |
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| 295 | os << get_name() << ' '; |
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[51b7345] | 296 | } |
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| 297 | |
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[bdd516a] | 298 | void VarRefNode::print( std::ostream &os, int indent ) const { |
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[b87a5ed] | 299 | printDesignation( os ); |
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[44b5ca0] | 300 | os << string( indent, ' ' ) << "Referencing: "; |
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[b87a5ed] | 301 | os << "Variable: " << get_name(); |
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| 302 | os << endl; |
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[51b7345] | 303 | } |
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| 304 | |
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[cd623a4] | 305 | //############################################################################## |
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| 306 | |
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[51b1202] | 307 | DesignatorNode::DesignatorNode( ExpressionNode *expr, bool isArrayIndex ) : isArrayIndex( isArrayIndex ) { |
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| 308 | set_argName( expr ); |
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[e869d663] | 309 | assert( get_argName() ); |
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| 310 | |
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| 311 | if ( ! isArrayIndex ) { |
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| 312 | if ( VarRefNode * var = dynamic_cast< VarRefNode * >( expr ) ) { |
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| 313 | |
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| 314 | stringstream ss( var->get_name() ); |
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| 315 | double value; |
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| 316 | if ( ss >> value ) { |
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| 317 | // this is a floating point constant. It MUST be |
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| 318 | // ".0" or ".1", otherwise the program is invalid |
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| 319 | if ( ! (var->get_name() == ".0" || var->get_name() == ".1") ) { |
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| 320 | throw SemanticError( "invalid designator name: " + var->get_name() ); |
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| 321 | } // if |
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| 322 | var->set_name( var->get_name().substr(1) ); |
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| 323 | } // if |
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| 324 | } // if |
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| 325 | } // if |
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[51b1202] | 326 | } |
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| 327 | |
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| 328 | DesignatorNode::DesignatorNode( const DesignatorNode &other ) : ExpressionNode( other ), isArrayIndex( other.isArrayIndex ) { |
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| 329 | } |
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| 330 | |
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[e869d663] | 331 | class DesignatorFixer : public Mutator { |
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| 332 | public: |
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| 333 | virtual Expression* mutate( NameExpr *nameExpr ) { |
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| 334 | if ( nameExpr->get_name() == "0" || nameExpr->get_name() == "1" ) { |
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| 335 | Constant val( new BasicType( Type::Qualifiers(), BasicType::SignedInt ), nameExpr->get_name() ); |
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| 336 | delete nameExpr; |
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| 337 | return new ConstantExpr( val ); |
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| 338 | } |
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| 339 | return nameExpr; |
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| 340 | } |
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| 341 | }; |
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| 342 | |
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[51b1202] | 343 | Expression *DesignatorNode::build() const { |
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[e869d663] | 344 | Expression * ret = get_argName()->build(); |
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| 345 | |
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[51b1202] | 346 | if ( isArrayIndex ) { |
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[e869d663] | 347 | // need to traverse entire structure and change any instances of 0 or 1 to |
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| 348 | // ConstantExpr |
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| 349 | DesignatorFixer fixer; |
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| 350 | ret = ret->acceptMutator( fixer ); |
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[51b1202] | 351 | } // if |
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[e869d663] | 352 | |
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| 353 | return ret; |
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[51b1202] | 354 | } |
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| 355 | |
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| 356 | void DesignatorNode::printOneLine( std::ostream &os, int indent ) const { |
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| 357 | if ( get_argName() ) { |
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| 358 | if ( isArrayIndex ) { |
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| 359 | os << "["; |
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| 360 | get_argName()->printOneLine( os, indent ); |
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| 361 | os << "]"; |
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| 362 | } else { |
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| 363 | os << "."; |
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| 364 | get_argName()->printOneLine( os, indent ); |
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| 365 | } |
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| 366 | } // if |
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| 367 | } |
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| 368 | |
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| 369 | void DesignatorNode::print( std::ostream &os, int indent ) const { |
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| 370 | if ( get_argName() ) { |
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| 371 | if ( isArrayIndex ) { |
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| 372 | os << "["; |
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| 373 | get_argName()->print( os, indent ); |
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| 374 | os << "]"; |
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| 375 | } else { |
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| 376 | os << "."; |
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| 377 | get_argName()->print( os, indent ); |
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| 378 | } |
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| 379 | } // if |
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| 380 | } |
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| 381 | |
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| 382 | //############################################################################## |
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| 383 | |
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[5721a6d] | 384 | static const char *opName[] = { |
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| 385 | "TupleC", "Comma", "TupleFieldSel", // "TuplePFieldSel", // n-adic |
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| 386 | // triadic |
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| 387 | "Cond", "NCond", |
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| 388 | // diadic |
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| 389 | "SizeOf", "AlignOf", "OffsetOf", "Attr", "CompLit", "?+?", "?-?", "?*?", "?/?", "?%?", "||", "&&", |
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| 390 | "?|?", "?&?", "?^?", "Cast", "?<<?", "?>>?", "?<?", "?>?", "?<=?", "?>=?", "?==?", "?!=?", |
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| 391 | "?=?", "?*=?", "?/=?", "?%=?", "?+=?", "?-=?", "?<<=?", "?>>=?", "?&=?", "?^=?", "?|=?", |
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| 392 | "?[?]", "FieldSel", "PFieldSel", "Range", |
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| 393 | // monadic |
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| 394 | "+?", "-?", "AddressOf", "*?", "!?", "~?", "++?", "?++", "--?", "?--", "&&" |
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| 395 | }; |
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| 396 | |
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[bdd516a] | 397 | OperatorNode::OperatorNode( Type t ) : type( t ) {} |
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[51b7345] | 398 | |
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[3848e0e] | 399 | OperatorNode::OperatorNode( const OperatorNode &other ) : ExpressionNode( other ), type( other.type ) { |
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[51b7345] | 400 | } |
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| 401 | |
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| 402 | OperatorNode::~OperatorNode() {} |
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| 403 | |
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[bdd516a] | 404 | OperatorNode::Type OperatorNode::get_type( void ) const{ |
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[b87a5ed] | 405 | return type; |
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[51b7345] | 406 | } |
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| 407 | |
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[3848e0e] | 408 | void OperatorNode::printOneLine( std::ostream &os, int indent ) const { |
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[b87a5ed] | 409 | printDesignation( os ); |
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[5721a6d] | 410 | os << opName[ type ] << ' '; |
---|
[51b7345] | 411 | } |
---|
| 412 | |
---|
| 413 | void OperatorNode::print( std::ostream &os, int indent ) const{ |
---|
[b87a5ed] | 414 | printDesignation( os ); |
---|
[5721a6d] | 415 | os << string( indent, ' ' ) << "Operator: " << opName[type] << endl; |
---|
[b87a5ed] | 416 | return; |
---|
[51b7345] | 417 | } |
---|
| 418 | |
---|
[59db689] | 419 | const char *OperatorNode::get_typename( void ) const{ |
---|
[5721a6d] | 420 | return opName[ type ]; |
---|
[51b7345] | 421 | } |
---|
| 422 | |
---|
[cd623a4] | 423 | //############################################################################## |
---|
| 424 | |
---|
[7f5566b] | 425 | CompositeExprNode::CompositeExprNode() : ExpressionNode(), function( 0 ), arguments( 0 ) { |
---|
[51b7345] | 426 | } |
---|
| 427 | |
---|
[59db689] | 428 | CompositeExprNode::CompositeExprNode( const string *name_ ) : ExpressionNode( name_ ), function( 0 ), arguments( 0 ) { |
---|
[51b7345] | 429 | } |
---|
| 430 | |
---|
[bdd516a] | 431 | CompositeExprNode::CompositeExprNode( ExpressionNode *f, ExpressionNode *args ): |
---|
[b87a5ed] | 432 | function( f ), arguments( args ) { |
---|
[51b7345] | 433 | } |
---|
| 434 | |
---|
[bdd516a] | 435 | CompositeExprNode::CompositeExprNode( ExpressionNode *f, ExpressionNode *arg1, ExpressionNode *arg2): |
---|
[097e2b0] | 436 | function( f ), arguments( arg1 ) { |
---|
| 437 | arguments->set_link( arg2 ); |
---|
[51b7345] | 438 | } |
---|
| 439 | |
---|
[3848e0e] | 440 | CompositeExprNode::CompositeExprNode( const CompositeExprNode &other ) : ExpressionNode( other ), function( maybeClone( other.function ) ) { |
---|
[b87a5ed] | 441 | ParseNode *cur = other.arguments; |
---|
| 442 | while ( cur ) { |
---|
| 443 | if ( arguments ) { |
---|
| 444 | arguments->set_link( cur->clone() ); |
---|
| 445 | } else { |
---|
| 446 | arguments = ( ExpressionNode*)cur->clone(); |
---|
| 447 | } // if |
---|
| 448 | cur = cur->get_link(); |
---|
| 449 | } |
---|
[51b7345] | 450 | } |
---|
| 451 | |
---|
[3848e0e] | 452 | CompositeExprNode::~CompositeExprNode() { |
---|
[b87a5ed] | 453 | delete function; |
---|
| 454 | delete arguments; |
---|
[51b7345] | 455 | } |
---|
| 456 | |
---|
[d3b7937] | 457 | #include "Common/utility.h" |
---|
[51b7345] | 458 | |
---|
[3848e0e] | 459 | Expression *CompositeExprNode::build() const { |
---|
[b87a5ed] | 460 | OperatorNode *op; |
---|
| 461 | std::list<Expression *> args; |
---|
[51b7345] | 462 | |
---|
[b87a5ed] | 463 | buildList( get_args(), args ); |
---|
| 464 | |
---|
[cd623a4] | 465 | if ( ! ( op = dynamic_cast<OperatorNode *>( function ) ) ) { // function as opposed to operator |
---|
[b87a5ed] | 466 | return new UntypedExpr( function->build(), args, maybeBuild< Expression >( get_argName() )); |
---|
[cd623a4] | 467 | } // if |
---|
[b87a5ed] | 468 | |
---|
[cd623a4] | 469 | switch ( op->get_type()) { |
---|
| 470 | case OperatorNode::Incr: |
---|
| 471 | case OperatorNode::Decr: |
---|
| 472 | case OperatorNode::IncrPost: |
---|
| 473 | case OperatorNode::DecrPost: |
---|
| 474 | case OperatorNode::Assign: |
---|
| 475 | case OperatorNode::MulAssn: |
---|
| 476 | case OperatorNode::DivAssn: |
---|
| 477 | case OperatorNode::ModAssn: |
---|
| 478 | case OperatorNode::PlusAssn: |
---|
| 479 | case OperatorNode::MinusAssn: |
---|
| 480 | case OperatorNode::LSAssn: |
---|
| 481 | case OperatorNode::RSAssn: |
---|
| 482 | case OperatorNode::AndAssn: |
---|
| 483 | case OperatorNode::ERAssn: |
---|
| 484 | case OperatorNode::OrAssn: |
---|
| 485 | // the rewrite rules for these expressions specify that the first argument has its address taken |
---|
| 486 | assert( ! args.empty() ); |
---|
| 487 | args.front() = new AddressExpr( args.front() ); |
---|
| 488 | break; |
---|
[984dce6] | 489 | default: // do nothing |
---|
[cd623a4] | 490 | ; |
---|
[984dce6] | 491 | } // switch |
---|
[cd623a4] | 492 | |
---|
| 493 | switch ( op->get_type() ) { |
---|
| 494 | case OperatorNode::Incr: |
---|
| 495 | case OperatorNode::Decr: |
---|
| 496 | case OperatorNode::IncrPost: |
---|
| 497 | case OperatorNode::DecrPost: |
---|
| 498 | case OperatorNode::Assign: |
---|
| 499 | case OperatorNode::MulAssn: |
---|
| 500 | case OperatorNode::DivAssn: |
---|
| 501 | case OperatorNode::ModAssn: |
---|
| 502 | case OperatorNode::PlusAssn: |
---|
| 503 | case OperatorNode::MinusAssn: |
---|
| 504 | case OperatorNode::LSAssn: |
---|
| 505 | case OperatorNode::RSAssn: |
---|
| 506 | case OperatorNode::AndAssn: |
---|
| 507 | case OperatorNode::ERAssn: |
---|
| 508 | case OperatorNode::OrAssn: |
---|
| 509 | case OperatorNode::Plus: |
---|
| 510 | case OperatorNode::Minus: |
---|
| 511 | case OperatorNode::Mul: |
---|
| 512 | case OperatorNode::Div: |
---|
| 513 | case OperatorNode::Mod: |
---|
| 514 | case OperatorNode::BitOr: |
---|
| 515 | case OperatorNode::BitAnd: |
---|
| 516 | case OperatorNode::Xor: |
---|
| 517 | case OperatorNode::LShift: |
---|
| 518 | case OperatorNode::RShift: |
---|
| 519 | case OperatorNode::LThan: |
---|
| 520 | case OperatorNode::GThan: |
---|
| 521 | case OperatorNode::LEThan: |
---|
| 522 | case OperatorNode::GEThan: |
---|
| 523 | case OperatorNode::Eq: |
---|
| 524 | case OperatorNode::Neq: |
---|
| 525 | case OperatorNode::Index: |
---|
| 526 | case OperatorNode::Range: |
---|
| 527 | case OperatorNode::UnPlus: |
---|
| 528 | case OperatorNode::UnMinus: |
---|
| 529 | case OperatorNode::PointTo: |
---|
| 530 | case OperatorNode::Neg: |
---|
| 531 | case OperatorNode::BitNeg: |
---|
| 532 | case OperatorNode::LabelAddress: |
---|
[5721a6d] | 533 | return new UntypedExpr( new NameExpr( opName[ op->get_type() ] ), args ); |
---|
[cd623a4] | 534 | case OperatorNode::AddressOf: |
---|
| 535 | assert( args.size() == 1 ); |
---|
| 536 | assert( args.front() ); |
---|
| 537 | |
---|
| 538 | return new AddressExpr( args.front() ); |
---|
| 539 | case OperatorNode::Cast: |
---|
| 540 | { |
---|
| 541 | TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args()); |
---|
| 542 | assert( arg ); |
---|
[b87a5ed] | 543 | |
---|
[cd623a4] | 544 | DeclarationNode *decl_node = arg->get_decl(); |
---|
| 545 | ExpressionNode *expr_node = dynamic_cast<ExpressionNode *>( arg->get_link()); |
---|
[b87a5ed] | 546 | |
---|
[cd623a4] | 547 | Type *targetType = decl_node->buildType(); |
---|
| 548 | if ( dynamic_cast< VoidType* >( targetType ) ) { |
---|
| 549 | delete targetType; |
---|
| 550 | return new CastExpr( expr_node->build(), maybeBuild< Expression >( get_argName() ) ); |
---|
| 551 | } else { |
---|
| 552 | return new CastExpr( expr_node->build(),targetType, maybeBuild< Expression >( get_argName() ) ); |
---|
| 553 | } // if |
---|
| 554 | } |
---|
| 555 | case OperatorNode::FieldSel: |
---|
| 556 | { |
---|
| 557 | assert( args.size() == 2 ); |
---|
| 558 | |
---|
| 559 | NameExpr *member = dynamic_cast<NameExpr *>( args.back()); |
---|
| 560 | // TupleExpr *memberTup = dynamic_cast<TupleExpr *>( args.back()); |
---|
[b87a5ed] | 561 | |
---|
[cd623a4] | 562 | if ( member != 0 ) { |
---|
| 563 | UntypedMemberExpr *ret = new UntypedMemberExpr( member->get_name(), args.front()); |
---|
[b87a5ed] | 564 | delete member; |
---|
| 565 | return ret; |
---|
[cd623a4] | 566 | /* else if ( memberTup != 0 ) |
---|
| 567 | { |
---|
| 568 | UntypedMemberExpr *ret = new UntypedMemberExpr( memberTup->get_name(), args.front()); |
---|
| 569 | delete member; |
---|
| 570 | return ret; |
---|
| 571 | } */ |
---|
| 572 | } else |
---|
| 573 | assert( false ); |
---|
| 574 | } |
---|
| 575 | case OperatorNode::PFieldSel: |
---|
| 576 | { |
---|
| 577 | assert( args.size() == 2 ); |
---|
| 578 | |
---|
| 579 | NameExpr *member = dynamic_cast<NameExpr *>( args.back()); // modify for Tuples xxx |
---|
| 580 | assert( member != 0 ); |
---|
| 581 | |
---|
| 582 | UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) ); |
---|
| 583 | deref->get_args().push_back( args.front() ); |
---|
| 584 | |
---|
| 585 | UntypedMemberExpr *ret = new UntypedMemberExpr( member->get_name(), deref ); |
---|
| 586 | delete member; |
---|
| 587 | return ret; |
---|
| 588 | } |
---|
[5721a6d] | 589 | case OperatorNode::SizeOf: |
---|
[47534159] | 590 | { |
---|
| 591 | if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args()) ) { |
---|
[5721a6d] | 592 | return new SizeofExpr( arg->get_decl()->buildType()); |
---|
[47534159] | 593 | } else { |
---|
[5721a6d] | 594 | return new SizeofExpr( args.front()); |
---|
[47534159] | 595 | } // if |
---|
| 596 | } |
---|
[5721a6d] | 597 | case OperatorNode::AlignOf: |
---|
[cd623a4] | 598 | { |
---|
| 599 | if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args()) ) { |
---|
[5721a6d] | 600 | return new AlignofExpr( arg->get_decl()->buildType()); |
---|
[cd623a4] | 601 | } else { |
---|
[5721a6d] | 602 | return new AlignofExpr( args.front()); |
---|
[cd623a4] | 603 | } // if |
---|
| 604 | } |
---|
[5721a6d] | 605 | case OperatorNode::OffsetOf: |
---|
| 606 | { |
---|
[2a4b088] | 607 | assert( args.size() == 2 ); |
---|
| 608 | |
---|
| 609 | if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args() ) ) { |
---|
| 610 | NameExpr *member = dynamic_cast<NameExpr *>( args.back() ); |
---|
| 611 | assert( member != 0 ); |
---|
| 612 | |
---|
| 613 | return new UntypedOffsetofExpr( arg->get_decl()->buildType(), member->get_name() ); |
---|
| 614 | } else assert( false ); |
---|
[5721a6d] | 615 | } |
---|
[cd623a4] | 616 | case OperatorNode::Attr: |
---|
| 617 | { |
---|
| 618 | VarRefNode *var = dynamic_cast<VarRefNode *>( get_args()); |
---|
| 619 | assert( var ); |
---|
| 620 | if ( ! get_args()->get_link() ) { |
---|
| 621 | return new AttrExpr( var->build(), ( Expression*)0); |
---|
| 622 | } else if ( TypeValueNode * arg = dynamic_cast<TypeValueNode *>( get_args()->get_link()) ) { |
---|
| 623 | return new AttrExpr( var->build(), arg->get_decl()->buildType()); |
---|
| 624 | } else { |
---|
| 625 | return new AttrExpr( var->build(), args.back()); |
---|
| 626 | } // if |
---|
| 627 | } |
---|
| 628 | case OperatorNode::CompLit: |
---|
| 629 | throw UnimplementedError( "C99 compound literals" ); |
---|
| 630 | // the short-circuited operators |
---|
| 631 | case OperatorNode::Or: |
---|
| 632 | case OperatorNode::And: |
---|
| 633 | assert( args.size() == 2); |
---|
| 634 | return new LogicalExpr( notZeroExpr( args.front() ), notZeroExpr( args.back() ), ( op->get_type() == OperatorNode::And ) ); |
---|
| 635 | case OperatorNode::Cond: |
---|
| 636 | { |
---|
| 637 | assert( args.size() == 3); |
---|
[7f5566b] | 638 | std::list< Expression * >::const_iterator i = args.begin(); |
---|
[cd623a4] | 639 | Expression *arg1 = notZeroExpr( *i++ ); |
---|
| 640 | Expression *arg2 = *i++; |
---|
| 641 | Expression *arg3 = *i++; |
---|
| 642 | return new ConditionalExpr( arg1, arg2, arg3 ); |
---|
| 643 | } |
---|
| 644 | case OperatorNode::NCond: |
---|
| 645 | throw UnimplementedError( "GNU 2-argument conditional expression" ); |
---|
| 646 | case OperatorNode::Comma: |
---|
| 647 | { |
---|
[b87a5ed] | 648 | assert( args.size() == 2); |
---|
[7f5566b] | 649 | std::list< Expression * >::const_iterator i = args.begin(); |
---|
[cd623a4] | 650 | Expression *ret = *i++; |
---|
| 651 | while ( i != args.end() ) { |
---|
| 652 | ret = new CommaExpr( ret, *i++ ); |
---|
[b87a5ed] | 653 | } |
---|
[cd623a4] | 654 | return ret; |
---|
[3848e0e] | 655 | } |
---|
[cd623a4] | 656 | // Tuples |
---|
| 657 | case OperatorNode::TupleC: |
---|
| 658 | { |
---|
| 659 | TupleExpr *ret = new TupleExpr(); |
---|
| 660 | std::copy( args.begin(), args.end(), back_inserter( ret->get_exprs() ) ); |
---|
| 661 | return ret; |
---|
| 662 | } |
---|
| 663 | default: |
---|
| 664 | // shouldn't happen |
---|
[5721a6d] | 665 | assert( false ); |
---|
[cd623a4] | 666 | return 0; |
---|
| 667 | } // switch |
---|
[51b7345] | 668 | } |
---|
| 669 | |
---|
[bdd516a] | 670 | void CompositeExprNode::printOneLine( std::ostream &os, int indent ) const { |
---|
[b87a5ed] | 671 | printDesignation( os ); |
---|
| 672 | os << "( "; |
---|
| 673 | function->printOneLine( os, indent ); |
---|
| 674 | for ( ExpressionNode *cur = arguments; cur != 0; cur = dynamic_cast< ExpressionNode* >( cur->get_link() ) ) { |
---|
| 675 | cur->printOneLine( os, indent ); |
---|
[5721a6d] | 676 | } // for |
---|
[b87a5ed] | 677 | os << ") "; |
---|
[51b7345] | 678 | } |
---|
| 679 | |
---|
[bdd516a] | 680 | void CompositeExprNode::print( std::ostream &os, int indent ) const { |
---|
[b87a5ed] | 681 | printDesignation( os ); |
---|
[44b5ca0] | 682 | os << string( indent, ' ' ) << "Application of: " << endl; |
---|
[b87a5ed] | 683 | function->print( os, indent + ParseNode::indent_by ); |
---|
[51b7345] | 684 | |
---|
[44b5ca0] | 685 | os << string( indent, ' ' ) ; |
---|
[b87a5ed] | 686 | if ( arguments ) { |
---|
| 687 | os << "... on arguments: " << endl; |
---|
| 688 | arguments->printList( os, indent + ParseNode::indent_by ); |
---|
| 689 | } else |
---|
| 690 | os << "... on no arguments: " << endl; |
---|
[51b7345] | 691 | } |
---|
| 692 | |
---|
[a08ba92] | 693 | void CompositeExprNode::set_function( ExpressionNode *f ) { |
---|
[b87a5ed] | 694 | function = f; |
---|
[51b7345] | 695 | } |
---|
| 696 | |
---|
[a08ba92] | 697 | void CompositeExprNode::set_args( ExpressionNode *args ) { |
---|
[b87a5ed] | 698 | arguments = args; |
---|
[51b7345] | 699 | } |
---|
| 700 | |
---|
[bdd516a] | 701 | ExpressionNode *CompositeExprNode::get_function( void ) const { |
---|
[b87a5ed] | 702 | return function; |
---|
[51b7345] | 703 | } |
---|
| 704 | |
---|
[bdd516a] | 705 | ExpressionNode *CompositeExprNode::get_args( void ) const { |
---|
[b87a5ed] | 706 | return arguments; |
---|
[51b7345] | 707 | } |
---|
| 708 | |
---|
[a08ba92] | 709 | void CompositeExprNode::add_arg( ExpressionNode *arg ) { |
---|
[b87a5ed] | 710 | if ( arguments ) |
---|
| 711 | arguments->set_link( arg ); |
---|
| 712 | else |
---|
| 713 | set_args( arg ); |
---|
[51b7345] | 714 | } |
---|
| 715 | |
---|
[cd623a4] | 716 | //############################################################################## |
---|
| 717 | |
---|
[7f5566b] | 718 | Expression *AsmExprNode::build() const { |
---|
| 719 | return new AsmExpr( maybeBuild< Expression >( inout ), (ConstantExpr *)constraint->build(), operand->build() ); |
---|
| 720 | } |
---|
| 721 | |
---|
| 722 | void AsmExprNode::print( std::ostream &os, int indent ) const { |
---|
| 723 | os << string( indent, ' ' ) << "Assembler Expression:" << endl; |
---|
| 724 | if ( inout ) { |
---|
| 725 | os << string( indent, ' ' ) << "inout: " << std::endl; |
---|
| 726 | inout->print( os, indent + 2 ); |
---|
| 727 | } // if |
---|
| 728 | if ( constraint ) { |
---|
| 729 | os << string( indent, ' ' ) << "constraint: " << std::endl; |
---|
| 730 | constraint->print( os, indent + 2 ); |
---|
| 731 | } // if |
---|
| 732 | if ( operand ) { |
---|
| 733 | os << string( indent, ' ' ) << "operand: " << std::endl; |
---|
| 734 | operand->print( os, indent + 2 ); |
---|
| 735 | } // if |
---|
| 736 | } |
---|
| 737 | |
---|
| 738 | void AsmExprNode::printOneLine( std::ostream &os, int indent ) const { |
---|
| 739 | printDesignation( os ); |
---|
| 740 | os << "( "; |
---|
| 741 | if ( inout ) inout->printOneLine( os, indent + 2 ); |
---|
| 742 | os << ", "; |
---|
| 743 | if ( constraint ) constraint->printOneLine( os, indent + 2 ); |
---|
| 744 | os << ", "; |
---|
| 745 | if ( operand ) operand->printOneLine( os, indent + 2 ); |
---|
| 746 | os << ") "; |
---|
| 747 | } |
---|
| 748 | |
---|
| 749 | //############################################################################## |
---|
| 750 | |
---|
| 751 | void LabelNode::print( std::ostream &os, int indent ) const {} |
---|
| 752 | |
---|
| 753 | void LabelNode::printOneLine( std::ostream &os, int indent ) const {} |
---|
| 754 | |
---|
| 755 | //############################################################################## |
---|
| 756 | |
---|
[bdd516a] | 757 | CommaExprNode::CommaExprNode(): CompositeExprNode( new OperatorNode( OperatorNode::Comma )) {} |
---|
[51b7345] | 758 | |
---|
[bdd516a] | 759 | CommaExprNode::CommaExprNode( ExpressionNode *exp ) : CompositeExprNode( new OperatorNode( OperatorNode::Comma ), exp ) { |
---|
[3848e0e] | 760 | } |
---|
[51b7345] | 761 | |
---|
[bdd516a] | 762 | CommaExprNode::CommaExprNode( ExpressionNode *exp1, ExpressionNode *exp2) : CompositeExprNode( new OperatorNode( OperatorNode::Comma ), exp1, exp2) { |
---|
[51b7345] | 763 | } |
---|
| 764 | |
---|
[a08ba92] | 765 | CommaExprNode *CommaExprNode::add_to_list( ExpressionNode *exp ) { |
---|
[b87a5ed] | 766 | add_arg( exp ); |
---|
[51b7345] | 767 | |
---|
[b87a5ed] | 768 | return this; |
---|
[51b7345] | 769 | } |
---|
| 770 | |
---|
[3848e0e] | 771 | CommaExprNode::CommaExprNode( const CommaExprNode &other ) : CompositeExprNode( other ) { |
---|
[51b7345] | 772 | } |
---|
| 773 | |
---|
[cd623a4] | 774 | //############################################################################## |
---|
| 775 | |
---|
[bdd516a] | 776 | ValofExprNode::ValofExprNode( StatementNode *s ): body( s ) {} |
---|
[51b7345] | 777 | |
---|
[3848e0e] | 778 | ValofExprNode::ValofExprNode( const ValofExprNode &other ) : ExpressionNode( other ), body( maybeClone( body ) ) { |
---|
[51b7345] | 779 | } |
---|
| 780 | |
---|
| 781 | ValofExprNode::~ValofExprNode() { |
---|
[b87a5ed] | 782 | delete body; |
---|
[51b7345] | 783 | } |
---|
| 784 | |
---|
| 785 | void ValofExprNode::print( std::ostream &os, int indent ) const { |
---|
[b87a5ed] | 786 | printDesignation( os ); |
---|
[59db689] | 787 | os << string( indent, ' ' ) << "Valof Expression:" << std::endl; |
---|
[b87a5ed] | 788 | get_body()->print( os, indent + 4); |
---|
[51b7345] | 789 | } |
---|
| 790 | |
---|
[3848e0e] | 791 | void ValofExprNode::printOneLine( std::ostream &, int indent ) const { |
---|
[b87a5ed] | 792 | assert( false ); |
---|
[51b7345] | 793 | } |
---|
| 794 | |
---|
| 795 | Expression *ValofExprNode::build() const { |
---|
[b87a5ed] | 796 | return new UntypedValofExpr ( get_body()->build(), maybeBuild< Expression >( get_argName() ) ); |
---|
[3848e0e] | 797 | } |
---|
| 798 | |
---|
[cd623a4] | 799 | //############################################################################## |
---|
| 800 | |
---|
[bdd516a] | 801 | ForCtlExprNode::ForCtlExprNode( ParseNode *init_, ExpressionNode *cond, ExpressionNode *incr ) throw ( SemanticError ) : condition( cond ), change( incr ) { |
---|
[b87a5ed] | 802 | if ( init_ == 0 ) |
---|
| 803 | init = 0; |
---|
| 804 | else { |
---|
| 805 | DeclarationNode *decl; |
---|
| 806 | ExpressionNode *exp; |
---|
| 807 | |
---|
[a61fea9a] | 808 | if (( decl = dynamic_cast<DeclarationNode *>(init_) ) != 0) |
---|
[b87a5ed] | 809 | init = new StatementNode( decl ); |
---|
| 810 | else if (( exp = dynamic_cast<ExpressionNode *>( init_)) != 0) |
---|
| 811 | init = new StatementNode( StatementNode::Exp, exp ); |
---|
| 812 | else |
---|
| 813 | throw SemanticError("Error in for control expression"); |
---|
| 814 | } |
---|
[51b7345] | 815 | } |
---|
| 816 | |
---|
| 817 | ForCtlExprNode::ForCtlExprNode( const ForCtlExprNode &other ) |
---|
[b87a5ed] | 818 | : ExpressionNode( other ), init( maybeClone( other.init ) ), condition( maybeClone( other.condition ) ), change( maybeClone( other.change ) ) { |
---|
[51b7345] | 819 | } |
---|
| 820 | |
---|
[a08ba92] | 821 | ForCtlExprNode::~ForCtlExprNode() { |
---|
[b87a5ed] | 822 | delete init; |
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| 823 | delete condition; |
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| 824 | delete change; |
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[51b7345] | 825 | } |
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| 826 | |
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| 827 | Expression *ForCtlExprNode::build() const { |
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[b87a5ed] | 828 | // this shouldn't be used! |
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| 829 | assert( false ); |
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| 830 | return 0; |
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[51b7345] | 831 | } |
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| 832 | |
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| 833 | void ForCtlExprNode::print( std::ostream &os, int indent ) const{ |
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[59db689] | 834 | os << string( indent,' ' ) << "For Control Expression -- :" << endl; |
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[a61fea9a] | 835 | |
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[59db689] | 836 | os << string( indent + 2, ' ' ) << "initialization:" << endl; |
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[a61fea9a] | 837 | if ( init != 0 ) |
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| 838 | init->printList( os, indent + 4 ); |
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| 839 | |
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| 840 | os << string( indent + 2, ' ' ) << "condition: " << endl; |
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| 841 | if ( condition != 0 ) |
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| 842 | condition->print( os, indent + 4 ); |
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[59db689] | 843 | os << string( indent + 2, ' ' ) << "increment: " << endl; |
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[a61fea9a] | 844 | if ( change != 0 ) |
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| 845 | change->print( os, indent + 4 ); |
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[51b7345] | 846 | } |
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| 847 | |
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[3848e0e] | 848 | void ForCtlExprNode::printOneLine( std::ostream &, int indent ) const { |
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[b87a5ed] | 849 | assert( false ); |
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[51b7345] | 850 | } |
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| 851 | |
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[cd623a4] | 852 | //############################################################################## |
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| 853 | |
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| 854 | TypeValueNode::TypeValueNode( DeclarationNode *decl ) : decl( decl ) { |
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[51b7345] | 855 | } |
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| 856 | |
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[cd623a4] | 857 | TypeValueNode::TypeValueNode( const TypeValueNode &other ) : ExpressionNode( other ), decl( maybeClone( other.decl ) ) { |
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[51b7345] | 858 | } |
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| 859 | |
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[3848e0e] | 860 | Expression *TypeValueNode::build() const { |
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[b87a5ed] | 861 | return new TypeExpr( decl->buildType() ); |
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[51b7345] | 862 | } |
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| 863 | |
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[bdd516a] | 864 | void TypeValueNode::print( std::ostream &os, int indent ) const { |
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[b87a5ed] | 865 | os << std::string( indent, ' ' ) << "Type:"; |
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| 866 | get_decl()->print( os, indent + 2); |
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[51b7345] | 867 | } |
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| 868 | |
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[bdd516a] | 869 | void TypeValueNode::printOneLine( std::ostream &os, int indent ) const { |
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[b87a5ed] | 870 | os << "Type:"; |
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| 871 | get_decl()->print( os, indent + 2); |
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[51b7345] | 872 | } |
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| 873 | |
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[3848e0e] | 874 | ExpressionNode *flattenCommas( ExpressionNode *list ) { |
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[cd623a4] | 875 | if ( CompositeExprNode *composite = dynamic_cast< CompositeExprNode * >( list ) ) { |
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| 876 | OperatorNode *op; |
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| 877 | if ( ( op = dynamic_cast< OperatorNode * >( composite->get_function() )) && ( op->get_type() == OperatorNode::Comma ) ) { |
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| 878 | if ( ExpressionNode *next = dynamic_cast< ExpressionNode * >( list->get_link() ) ) |
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| 879 | composite->add_arg( next ); |
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| 880 | return flattenCommas( composite->get_args() ); |
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| 881 | } // if |
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| 882 | } // if |
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[51b7345] | 883 | |
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[b87a5ed] | 884 | if ( ExpressionNode *next = dynamic_cast< ExpressionNode * >( list->get_link() ) ) |
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| 885 | list->set_next( flattenCommas( next ) ); |
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[51b7345] | 886 | |
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[b87a5ed] | 887 | return list; |
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[51b7345] | 888 | } |
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| 889 | |
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[3848e0e] | 890 | ExpressionNode *tupleContents( ExpressionNode *tuple ) { |
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[b87a5ed] | 891 | if ( CompositeExprNode *composite = dynamic_cast< CompositeExprNode * >( tuple ) ) { |
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| 892 | OperatorNode *op = 0; |
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| 893 | if ( ( op = dynamic_cast< OperatorNode * >( composite->get_function() )) && ( op->get_type() == OperatorNode::TupleC ) ) |
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| 894 | return composite->get_args(); |
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[cd623a4] | 895 | } // if |
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[b87a5ed] | 896 | return tuple; |
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[51b7345] | 897 | } |
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[b87a5ed] | 898 | |
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| 899 | // Local Variables: // |
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| 900 | // tab-width: 4 // |
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| 901 | // mode: c++ // |
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| 902 | // compile-command: "make install" // |
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| 903 | // End: // |
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